US390987A - peidmore - Google Patents

Description

(No Model.)

6 Sheets-Sheet 1. H. E. PRIDMORE.

GRAINVBINDER. No. 390,987.

Patented 001;. 9, i888.

l,.UumrlllHllllHabs- A INVENTR,

(No Model.) 6 sheetssheet 2.

H. E. PRIDMORB.

GRAIN BINDER. No. 890,987. Patented Oct. 9, 1888.

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I' By his Attorneys,

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N. PETRS. Pnnmlithogmww. Washington. D. C.

(No Model.) 6 Sheets-Sheet 3.

H.. E. PRIDMORB.

GRAIN BINDER.

180.890,98?. l Pumped 001;. 9, 1888.

WITN ESSES INVENTOR l He El'rZmore.

By hw vittorney. (JWgw. ,62 8 @Q :Q

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(No Model.) 6 Sheets- Sheet 4.

H. E. PRIDMORE.

GRAIN BINDER.

No. 390,987. 9 Patented Oot. 9, 1888.

NA PETERS. mwlmmwgnpher, wmanmn, l)A c.

(No Model.) 6 Sheets-S-heet 5J H. E. PRIDMORE.

GRAIN BINDER'.

No. 390,987. Patenteaoot. 9, 1.888.

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H. E. PRIDMORE.

GRAIN BINDER.

v No. 890,987. Patented Oct. 9, 1888. y

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UNrrno raras artnr @ramene HENRY E. PRIDMORE, OF CHICAGQ-ILLINOIS, ASSIGNOR TO THEAMCCORMICK HARVESTING MACHINE COMPANY.

GRAINBBINDER.

SPECIFICATION forming part of Letters atent No. 390,987, dated October 9, 1888.

(No model.)

To /LZZ whom t may concern:

Be it known that I, HENRY E. PRIDMORE, a citizen of the United States, residing at Ghicago, in the county of Cookand State of' lilinois, haveinvented certain new and useful Improvementsin Grain-Binders, of which the following is a specification.

Myinvention relates particularly to the knotting, holding, and severing` mechanisms of [o grain-binders and to the methods of operating these; and it consists in combining with a revolving cord-knetter and the wheel which drives it a pivoted bearing or stock therefor, an arm projecting from said stock, and a cam` t5 groove with which said arm engages, of such effective outline that in the tying operation the knetter is first carried toward the gavel to Wind up the band ends and form a knot close to the straw, and is then carried away there- 2o from to tighten said knot; in a tubular knotter of improved construction; in combining with the holder-disk and its shoe and ratchet a bell-crank lever, a cam-wheel engaging with one arm of said lever, and a pawl and reverscly-set knife carried by the other arm, so that the disk shall be actuated in the forward movement of the lever and the cord severed in its return movement; in combining with the holder a fag chute to carry the fag-ends of the 3o cord away from thc operative parts, and in various other combinations and details of construction, hereinafter described and claimed.

For the purpose of explaining my invention l have illustrated and shall describe it as ap- 3 5 plied to areeiproeatingcarriage such as used upon one type ofthe well-known McCormick binder for many years past, without, however, intending thereby to in any wise limit myself to its use in connection with that specific type 4o of machine.

In the drawings, Figure 1 is a top plan view of myiinproved knotting, holding, and cutting devices and their actuating mechanism. Fig. 2 is an end elevation thereof, showing, also,

part of the supporting-frame and actuatingrack of the reciprocating binder; Fig. 3, a like side elevation, with said devicesin an advanced position and the knetter at its nearest point of approach to the gavel. Fig. -it represents said 5o devices in still a further stage of action, the knetter having reeeded from the gavel to tighten the knot; Fig. 5, an elevation from the inner or grain side of the machine of the same devices, with part broken away to more clearly expose the mechanism. Fig. 6 is an elevation 55 from the outer or stubble side, with the knotter in longitudinal section. Fig. 7 is a top plan view, with the knetter removed to more clearly'display the holder-actuati ng and cordcutting devices, and with the gear and cam 6o wheel which drives the knetter and said devices in section. Figs. 8, 9, lO, and 11 are details of the clutch or coupling device which I employ in order to actuate the shaft carried by the reciprocating binding carriage and which in its turn actuates the gear and lcam wheel; Fig. 12, a top plan view of part of the reciprocating hindingcarriage, including said shaft and the gear and cam wheel and clutch and one of the ways upon which said carriage 7o travels, showing the rack which operates the shaft in the outward traverse; Fig. 13, a crosssection through said shaft on the inner side of the gear and cam wheel, to show the springbrake by which the shaft is held against motion at its intervals of rest; and Fig. 14, adiagrani illustrating the relative actuations of the knetter, holder, and cutter, both as to their component parts and as to the swinging movement of the knetter.

A represents a supporting stock or bearing pivoted, in the present instance, upon a shaft, A', which is the binder-carriage shaft. This stock has an arm or heel piece, a, carrying a laterally-proj ecting stud or anti-friction roller, c, which takes into a cam groove or track, B, fast to the supporting-frame of the binder, so that as the carriage reciprocates back and forth the stock may be actuated by the flexions of said cam-groove. At its commencement, or the right-hand end as it is shown in the drawings, this groove has astraight reach, b, so that the stock may be held stationaryin the initial Amovement of the binder-carriage t after receiving a gavel and while the binderarm is coming down. Next, it has an ascending reach, b', which raises the stock immediately before the knetter begins to turn, as will be presently explained, and continues to liftit until it has carried the knotter into close proximity with the gavel; then there isashort straight reach, b2, which retains the stock sta- IOO tionary for a moment, with the knotterstill in close proximity with the gavel while the knot is being completed; iinally,a descending reach, b3, whereby the stock is swung down, drawing the knetter away from the gavel to'pull upon and tighten the folds of the knot, this reach, however, terminating in a straight reach, b", which corresponds to the time when the bindercarriage nears the extreme of its outward traverse and the bundle is to be ejected. Any of the usual forms of knotters may be used in connection with this swinging stock orbearing for the purposes enumerated; but that which I have devised and shall describe herein is of the tubular type. It is mounted horizontally in the upper part of the stock and is constructed as follows:

A casing, C, is fixed on the stock, so as to be rigid therewith, and within this easing is placed the rotary sleeve C', having at its extreme end a disk or button, c, capping the exposed end ofthe easing, rounded on its face to facilitate the slipping of the cord in forming the knot, and provided at one side with an inwardly curved looping inger, c', directed toward the axis of the knetter. The front part -ot this sleeve C' is bored to admit a tube, c2,

into which tits the spindle of a cord-hook, c3, connected with said tube by pins c4 playing in longitudinal slots therein. The rear part oi' the sleeve has a bore of greater diameter, forming a cylindrical chamber, c, in which plays the enlarged head c7 of the cordhook spindle, and the tube c'l is flanged at its inner end to also tit and play within this chamber. A spring, c, is coiled about the spindle of the cordhook, pressing at one end against the flange on the tube and at the other against the head of the spindle, so that whenever the latter is projected it will carry the tube along with it until the ange on said tube comes in contact with the forward end of the chamber. At this moinentthe tube will have reached the tip of the looping-finger on the rotating sleeve and come just about flush with its outerend, and the two will make a close joint, so that the cord lying between them cannot escape. Should the cord-hook now be forced farther on, which will be permitted by the slot-and` pin connection just mentioned, it will project beyond the tube and will be ready to receive the end strands of the cord after the loop has been crossed by the rotation of the knetter.

The rear end of the sleeve is formed with a pinion, D, and delay-shoes d d', which respectively engage with segments d2 and d, and delay-ledges d" and df on the periphery of the gear and cam wheel D, xed to the bindershaft, so as to be rotated as the binder carriage reciprocates, the irst segment serving' to give the rotation necessary to form the loop and cross its ends, and the second, after the inter* val ofdelay during which the cord-hook seizes the crossed ends and draws them into the tube, imparting a further rotation to carry the loopinghnger to its initial or receiving position. To prevent or guard against any accidental derangemcnt oln the cord, either bel'oieor while being tied, a portion of the casing on the inner side is extended beyond the end of the main part and provided with an arm, d, curved conecntrically with the rotating sleeve and reaching down int-o close proximity with the holder, so that the cord stretching up therefrom cannot be swung aside.

To a hanger, E, from the stock or from the casing ot the knetter is pivoted at e a leverarm, 1G', jointed at its free end to the head ol' the cord-hook and having, intermediate between this joint a-nd its pivot, a stud or antifriction roll, e', which enters a cam groove or track, F, upon the periphery or' the gear and cam wheel exteriorly to the segment-racks and dclayledges, by which cam-groove the cordhook and the cord-tube are given the movements already referred to. Vhen the knetter is at rest previous to a binding operation, the stud from the lever lies in the straightrreach fin said groove; but al'ter the cord has been brought down and laid in the loepingeinger the revolution ol" the gear and cam wheel brings around an inward jog or reach, f', inclined just sufficiently to project the cord-hook and cord-tube co-ordinately to close past said looping-iinger. Then a secon d straight reaclnf, ol' such length that the loop is nearly formed by the revolution of the knetter before it terminates, is entered by the stud. This is sncceeded by another short inward jog or incline, f", which projects the cord-hook to catch the strands of cord as they are crossed; then by a short straight reach, j, during which the continuing revolution ot' the knotting-iinger has fully crossed the strands and they have been caught by the hook; this again by along outward incline, fi, equal in length to the two inward inclines, which withdraws both the cordhook into the tube and the tube and hook into the sleeve, the revolution ot' the knetter being meanwhile intermittcd by the delayssurface di, with which its shoe d has engaged, and this bya short inward incline, which again projects the tube, the hook ot' course accmnpanying it, thus giving a little slack just as the knetter begins to swing away from the gavel. New comes another straight reach, fi, during which the knetter continues its movement away from the gavel totighten the knot, the bight of which is still held by the cord-hook.

Then a further inward incline, f, which projects the cord-hook to release the bight. Then, after another straight reach, f, which gives sufficient time for the loop to be disengaged from said hook, there is an outward incline, flo, carrying both the hook and the tube into their original or starting position, when the knetter ceases to move andthe binder reaches the end of its outward traverse.

Upon a bracket, G, from the oscillating stock beneath the knetter, when that is in its highest position, is journaled the rotary notched disk G, one side of which is embraced by the spring'pressed shoe G2, pivoted to a lug, g, from said bracket. The disk has the Saone? usual ratehet,g,beneath, and will be restrained from retrogression by a click, as customary in this style of holders. To another lug, g2, from said bracket,on the inner side of the stock, is pivoted a bell-crank lever, H, one arm of which supports the pivoted pawl H', and, by an extension, affords a seat for one end of the coiled spring 7L and a guide for the play of the curved sustaining-rod h', which that spring embraces, the other end of the rod being secured to the pawl so as to force it into engagement wit-h the ratchet on the disk. The second arm of the bell-crank is provided with an anti-friction roller, h2, and enters a cam groove or way, I, formed in the adjacent side of the gear and cam wheel and receives movements therefrom to actuate the bell crank. This cam-groove extends from near the hub to near the periphery of the wheel, being concentric immediately around the hub and also at the periphery, so as to hold the bell-crank stationary and connecting with these concentric reaches by flaring ways which serve to actuate the lever in one direction and the other.

When the cord is brought down,the actuating-arm of the bellcrank is near the end of the concentric reach i, which, being the one around the hub, gives the longest period of delay. Immediately thereafter the combined rotation of the gear and cam wheel and rising oscillation of the stock bring said arm into the flaring reach t", which causes the other arm of the bell-crank to be swung toward the holderdisk, forcing the pawl against the ratchet thereon, and rotating the disk to grasp the cord. Before this rotation is quite finished the knotter itself begins to turn, but only by its concurrent movement, to bring the cordnger against the cord, so that the latter may be confined by the projecting movement of the cord-tube. The cord strands having been thus confined in the knotter and fully secured in the holder, t-he rotation of the gear and cam wheel brings around the outer concentric reach, if, which gives a relatively short delay, terminating at the moment when the ends of the cord have been crossed by the looping-tinger and laid in the cord-hook. Then the inwardly-flaring reach i3 acts upon the bell-crank to retract it from the ratchet-tooth with which it has been engaged, this causing its nose to ride up the back of the adjacent tooth and giving it a lateral movement outward.

Now, upon the shank of the pawl is secured a knife, K, which extends over theholder-disk to the shoe and has arecessed cutting-edge, k, as shown. Before the disk is actuated-that is, before the pawl is thrust forwardthis knife is held by the withdrawn bell-crank and inwardly-pressed pawl in such position as to be out of the way lof the cord and to be guarded thereagainst by the disk, itself lying almost diametrically over the disk. When the pawl is thrust forward to turn the disk,the cutting edge of the knife is brought right over the edge of the clampingshoe, just beyond the point to which the cord will be darried by the rotation ofthe disk, and when the pawl is withdrawn and rides up the back of the ratchet-tooth behind it, asjust explained, the knife itself will by this movement be swung forward toward and against the cord and drawn past it to sever it.

In the use of disk-holders, and indeed of nearly all holders, if not all, fag-ends are left by the severing of the cord, which generally or frequently get into the machinery, causing trouble. To obviate this defect, I arrange behind the holder, and leading from the point where it discharges these fags, a defiecting plate or shoe, L, of sheet metal, inclined downward and having` at the side adjacent to the operative parts or at both sides, if they are operative on both sides, an oblong ange, Z, of sufficient height to prevent the escape of fags except over the tail of the chute. When these devices are used upon a traversing bindingcarriage, as shown in the drawings, and herein described for the purpose of the case, it is necessary that a little time should be given after the commencement of the outward traverse before they are put in operation, so as to permit the binder arm to come down andplace the cord in position for the action of the holder. Therefore a coupling must be employed between the shaft that operates these devices and the pinion hLthat engages with the rack M of the supporti1ig-way,which will permitof said movement. It is also necessary or desirable that this coupling shall be under control of an attendant, or of some one about the machine, so that the shaft may be thrown out of gear at any point in the traverse of the carriage. To this end I mount the pinion IVI loosely upon the shaft and provide it with a single ratchet-tooth, m, upon its outer face, which is cupped, and upon the end of the shaft outside of the pinion fix a disk. N, which closes the cupped side thereof. To alug upon the exposed face of this disk is pivoted a dog, N', having at its nose a single ratchet-tooth,u, which passes through a slot in the disk to engage with the ratchet-tooth on the pinion, and is pressed into such engagement by a spring, u', acting upon a thumb-piece, n?, at its heel end. Upon the carriage, or that arm of the carriage which embraces the shaft, is pivoted a brake-dog, O, spring pressed against an eccentric, 0, formed upon the shaft, or more conveniently upon the hub of the gear and cam wheel,as shown in Fig. 13. At the end of the longer radius this eccentric has a recess, o, to receive a roller, 0', on the end of the brakedog. /Vith this arrangement it is evident that when the carriage is moving inward thedriving-tooth and the pinion will leave the driven dog and ride past it without actuating the shaft, which is held stationary by the brakedog; and the length of the actuating-rack being such that at the termination of the inward traverse this tooth will have been carried a certain number of gear-teeth beyond the lug, sufficient time will be given at the commence- IOO IOS

IIO

ment of the outward traverse for the binden arm to come down and place the cord before the tooth, (new in its reverse movement,) engages with the perpendicular face of the dog and clutches with the shaft to driveit.

The eccentric shape of the hub on which the brake-dog runs, and the pressure of the dog thereon, prevents a too violent starting of the mechanism moved by the shaft, and permits it to be gradually and easily' moved, and at the termination of the outward traverse in which the shaft makes exactly a single revolution, this eccentric again, by the resistance which it offers to the brake-dog, acts with the effect of a buffer to ease down the stopping of the mechanism and ofthe carriage. Of course the driving-dog, being exposed to the shaft, can be uncoupled at any point along the rack by simply pressing upon its heel end, thus allowing the knotting, holding, and cutting de vices to be thrown out of action should any cause necessitate this.

I claiml. The combination,substantially as hereinbefore set forth, with a cord-knetter, of a pivoted stock therefor, in which said knetter is journaled, an arm projecting from said stock, a ca1ngroo\f'e,with which said arm engages, of practically the outline described, and a wheel engaging with said knetter and rotating it, whereby in the tying operation the knetter is iirst carried toward the gavel while revolving to wind up the band' ends and form a knot close to the straw, and is then carried away therefrom to tighten said knot.

2. rl`he combination, substantially as hereinbefore set forth, of a traversing binding-earriage, a stock pivoted upon the end of a shaft in said carriage, al knetter' mounted in said oscillating stock, an arm from the stock, and a camway with which said arm engages, of practically the outline described, whereby the carriage moves upward in the binding operation, the stock is first oscillated to carry the knetter up toward the gavel, and then oscillated in the reverse direction to carry the knotter away from the gavel.

3. lThe combination, substantially as hereinbefore set forth, with a tubular knetter and with the cordvhelder, of the curved arm projecting from the casing beyond the end of said k netter and curving concentrically therewith down to a peint close to the holder and between which and the end of the knetter-tube the strands are laid to prevent the displacement of the cord endwise of said knetter.

4. The combination, substantially as hereinbefore set forth, te form a tubular knetter, of the rotary sleeve having an ineurved loopingfinger at its end, the cord-hook having an enlarged head of its spindle playing in a cylindrical chamber at the rear end ofsaid sleeve, the cordtube having a flange fitting within said chamber and connected with the spindle of t-he hook by a piu or pins therefrom taking into longitudinal slots in the tube, and the coiled spring seated against the enlarged head and against the flange of the tube within the chamber.

5. The combination, substantially as hereinbefore set forth, of a rotating sleeve having an incurved loopingiinger at its end, a tube tting within a bore at the 'finger end and having a flange playing within a cylindrical charnber at the rearend,a cord-hook playing through said tube and connected therewith by a pin or pins engaging in longitudinal slots in the body of the tube, a coiled spring encircling the spindle of the hook and seated at one end against the flange of the tube and at the other against an enlarged head or shank of said spin -1 dle which plays within said chamber, a lever pivoted to the supportilig-bracket and pin jointed to the end of said shank, a lug from said lever entering a camway in the periphery of a revolving wheel to cause it to project and retract the hook and gear teeth, and delayledges on the periphery of said wheel acting to revolve the sleeve and to hold it stationary by engagement with a pinion and delay-shoes at its rear.

6. The combi nation, substantially as hereinbefore set forth, with the helder-disk and its shoe and ratchet, of the bell-erank lever, the canrwheel engaging with one arm ofsaid lever, and the pawl and rcversely-set knife carried by the other arm, whereby the disk is actuated in the forward movement and the cord severed in the return movement of the said lever.

7. The combination, substantially as hereinbefore set forth, with the holder-disk and its shoe, of the bell-crank ylever, the cainway in the side ofthe gear and; cam wheel engaging with one arm of said lever, the pawl pivoted to the other arln of the lever and springpressed into engagement with a ratchet on the holder-disk, and the knife fixed to said pawl, in the manner described.

S. The combination, substantially ashereinbefore set forth, with the cord-holder, of the fag chute extending from the ejecting-point ot' said holder to a point clear of the operative niechanisnnto direct the fag'ends away therefrom.

9. The combi nation, substantially as hereinbefore set forth, with the rotary holder-disk and its shoe, ofthe fag-chute sloping from the heel ofthe shoe to a point clear of the mechanism and having a guard flange or flanges.

10. The combination, substantially as hereinbefore set forth, with the driving-shaft,of a brakedog pivoted to its supporting-frame and an eccentric upon said drivingshaft, recessed at the end of its longer radius to receive a roller from the brake-dog, whereby the shaft is eased at its stepping and locked against movement.

ll. The combination, substantially as hereinbefore set forth, with the driving-shaft in the subtending arm of a reciprocatingbinder, ot'a ack en an outer supporting-way, a pinion mounted loosely on the shaft and having a single driving-tooth on its outer face, adisk lIO IIZ

1o ledges to rotate said knotter, the caniway on the periphery of the driven wheel, to reciprocate the oord-hook, the cam groove or Way in the face of the Wheel to aotuate the holder, and the can'rtracks whereby the stock is oscillated.

HENRY E. PRDMORE.

Witnesses:

WILLIAM R. BAKER, PAUL ARNOLD.

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